Seeking Grid Collage App

Seeking Grid Collage App

Hi all, long time apple user finally made the switch to android as I'm sick of being jerked around.

My problem is, on the iphone I had an app called FrameArtist+, which I used mostly to create collage backgrounds for my lock screen. The big benifit of this app was when you wanted to create a new collage, it came up with a grid, and you could drag out the highlighted area to choose how many squares you wanted (for example 4x6 would fit the iphone screen) and then you could merge the boxes of the grid to create different sized boxes (for example merge 4 to create one bigger box or 2 next to eachother to create a long box).

For the life of me I can't find an app on the play store that has a feature similar to this, I was wondering if anyone knew one?
I'd be happy to upload photos to better explain what im talking about if that would help, but I can't figure out how.